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Learn more about Celtra Duo (ZLS) and the recommended ways to handle the material in clinical application.
The preparation requirements of Celtra Duo (ZLS) are similar to other all-cermic restorations. Clinicians should aim for 1.5mm to 2mm of occlusal reduction with at least 1mm of axial reduction.
As with all CEREC restorations, the margins are the most critical part of the preparation and should be smooth and polished. Any milled restoration requires smooth polished margins so that the milling unit can adequately mill Celtra Duo (ZLS) restorations with ease.
Fired restorations have a flexural strength of 370 MPa.
The induction furnace CEREC SpeedFire by Dentsply Sirona combines the processes of sintering and glazing in one compact, user-friendly device. The CEREC SpeedFire reaches a maximum heating rate of 300 °C per minute – no preheating or holding temperatures are necessary. Its induction technology ensures a perfectly homogeneous temperature distribution. Its dimensions make the CEREC SpeedFire a compact device that fits in any practice.
No firing schedules are required for CEREC SpeedFire. All sintering and glazing processes are completely automated: The CEREC Software sends the order with the necessary information to the furnace, eliminating the need for manual programming.
Milled restorations have a flexural strength of 210MPa after polishing.
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